By Air - The nearest airport from Manali is Bhuntar airport which is also known as Kullu-Manali airport. This airport is located 50 km from Manali at NH21. There are regular flights to manali from New Delhi airport.
By Road - Manali is 570 Km away from Delhi. To reach Manali first need to reach Ambala through NH 1 then take NH22 reach Chandigarh. From Chandigarh national highway NH21 will take you to Kullu town via Bilaspur, Sundernagar and Mandi. From Kullu to Manali it is only 40 Km by road. From Delhi frequency of busses is very good.
By Rail - There is no any railway station near Manali. The nearest railway station is Una which is 250 km away. There are few more option including Kiratpur Sahib 268 km, Kalka 275 km , Chandigarh 310 km and Pathankot 325 km, you can choose railhead according to your comfort.